UI: add account state hint on main view

- This will do till we implement the more general error banner

Refs #74598

Change-Id: I337fdd6f602a03f36e779373a062fae30c854ba9
diff --git a/callwidget.h b/callwidget.h
index 588209b..cbec8b8 100644
--- a/callwidget.h
+++ b/callwidget.h
@@ -30,6 +30,7 @@
 #include "callmodel.h"
 #include "video/renderer.h"
 #include "video/previewmanager.h"
+#include "accountmodel.h"
 #include "categorizedhistorymodel.h"
 
 namespace Ui {
@@ -67,6 +68,7 @@
     void addedCall(Call *call, Call *parent);
     void callStateChanged(Call *call, Call::State previousState);
     void findRingAccount(QModelIndex idx1, QModelIndex idx2, QVector<int> vec);
+    void checkRegistrationState(Account* account,Account::RegistrationState state);
 
 private:
     Ui::CallWidget *ui;